How Do I delete Rows From Gridview Having Label in a Template Field using RowDeleting Event?

Question

4.00/5 (1 vote)

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I'm Fed Up With Searching and searching. Nothing Helps. Now I am badly in need of some SOLID running code for this. Please help me in deleting rows from Gridview.

This is my .aspx file code:

C#

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DemoDeleteFromGridView.aspx.cs" Inherits="DemoDeleteFromGridView" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
            Height="154px" onrowdeleted="GridView1_RowDeleted" 
            onrowdeleting="GridView1_RowDeleting" style="text-align: center" Width="361px">
            <Columns>
                <asp:TemplateField HeaderText="Names">
                    <ItemTemplate>
                        <asp:Label ID="Label_Name" runat="server" Text='<%#Eval("Name")%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Roll">
                    <ItemTemplate>
                        <asp:Label ID="Label_Roll" runat="server" Text='<%#Eval("Roll")%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Stream">
                    <ItemTemplate>
                        <asp:Label ID="Label_Stream" runat="server" Text='<%#Eval("Stream")%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:CommandField DeleteText="Remove" ShowDeleteButton="True" />
            </Columns>
        </asp:GridView>
        <br />
        The Deleted Roll No. Is
        <asp:Label ID="Label_Deleted_Roll" runat="server"></asp:Label>
    
    </div>
    </form>
</body>
</html>

This is my .aspx.cs file code:

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial class DemoDeleteFromGridView : System.Web.UI.Page
{
    DataTable dt = new DataTable();
    protected void Page_Load(object sender, EventArgs e)
    {
        dt.Columns.Add("Name", typeof(String));
        dt.Columns.Add("Roll", typeof(int));
        dt.Columns.Add("Stream", typeof(String));

        dt.Rows.Add("Jnui", 93, "CSE");
        dt.Rows.Add("Souraka", 21, "AEIE");
        dt.Rows.Add("Sweta", 16, "IT");
        dt.Rows.Add("Pinaki", 76, "FT");
        dt.Rows.Add("Sayantan", 100, "BT");

        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        //Some Code
    }
    protected void GridView1_RowDeleted(object sender, GridViewDeletedEventArgs e)
    {
        //To Show the Deleted Row's Role number
        //Prints the Deleted Roll in Label_Deleted_Roll
    }
}

Posted 8-May-14 21:01pm

J. Chatterjee

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Comments

syed shanu 9-May-14 3:26am

Chk this link :

http://www.aspdotnet-suresh.com/2011/01/how-to-delete-records-in-gridview-with.html

http://forums.asp.net/t/1806761.aspx?delete+recored+from+gridview+RowDeleting

J. Chatterjee 9-May-14 3:50am

I am not accessing row using the HeaderText. Rather I've taken A Label name Label_Cart_Prod and its text property = <%#Eval("Cart_Prod")%>

Can I take "Cart_Prod" as my datakey?

J. Chatterjee 9-May-14 3:53am

In fact there are three Labels in a single TemplateField

1 solution

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King Fisher · Accepted Answer · 2014-05-08T21:33:00

Solution 1

Refer this :
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowdeleting%28v=vs.110%29.aspx[^]

Row Deleting event in gridview control.[^]

Updated/
http://stackoverflow.com/questions/5351066/how-to-get-id-from-the-gridview-in-gridview-rowdeleting-event-using-c[^]

Posted 8-May-14 21:33pm

King Fisher

Updated 8-May-14 21:59pm

v2

Comments

J. Chatterjee 9-May-14 3:50am

I am not accessing row using the HeaderText. Rather I've taken A Label name Label_Cart_Prod and its text property = <%#Eval("Cart_Prod")%>

Can I take "Cart_Prod" as my datakey?

King Fisher 9-May-14 4:00am

Updated

J. Chatterjee 9-May-14 4:13am

What is the difference between Bind and Eval?

J. Chatterjee 9-May-14 3:53am

In fact there are three Labels in a single TemplateField

King Fisher 9-May-14 4:58am

Don't expect the Exact Code.you should try something.

J. Chatterjee 9-May-14 4:06am

What is the difference between Bind and Eval?

King Fisher 9-May-14 4:56am

http://stackoverflow.com/questions/259141/what-is-the-difference-between-bind-and-eval-in-asp-net

J. Chatterjee 9-May-14 9:10am

At last I got success :) Thank you very very much.. I have one more question.
Will there be any problem if I set the Visibility Properties of the DataKeyNames Fields of my gridview to? Can it still do the comparisons?